Setting device, parameter setting method, and storage medium storing program

a technology of setting device and program, applied in the direction of electrical equipment, digital transmission, data switching network, etc., can solve problems such as delay and loss, and achieve the effect of suppressing delay or loss

Active Publication Date: 2021-11-25
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a way to set parameters for an Ethernet switch that meet quality targets while reducing delays and loss of high priority messages. This invention allows for efficient and effective configuration of the switch without compromising the throughput of important messages.

Problems solved by technology

However, if queue parameters of weights and buffer sizes are not set appropriately, there is a possibility of delay and loss even of high priority messages assigned to high priority queues.

Method used

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  • Setting device, parameter setting method, and storage medium storing program
  • Setting device, parameter setting method, and storage medium storing program
  • Setting device, parameter setting method, and storage medium storing program

Examples

Experimental program
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Embodiment Construction

[0036]Vehicle Configuration

[0037]First, explanation follows regarding a vehicle 10 installed with an Ethernet switch 14 with parameters set by a parameter setting device 20 of a present exemplary embodiment.

[0038]As illustrated in FIG. 1, the vehicle 10 of the present exemplary embodiment is configured including ten electronic control units (ECUs) 12, these being control devices, and two Ethernet switches 14. Note that the number of the ECUs 12 is not limited to being ten, and the number of the Ethernet switches 14 is not limited to being two.

[0039]The Ethernet switches 14 include a first Ethernet switch 14A and a second Ethernet switch 14B. Four of the ECUs 12 are connected to the first Ethernet switch 14A, and six of the ECUs 12 are connected to the second Ethernet switch 14B. The first Ethernet switch 14A and the second Ethernet switch 14B are also connected directly together. Each of the Ethernet switches 14 has a maximum of eight ports.

[0040]Communication between the respective...

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PUM

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Abstract

A setting device to set a parameter for transmission queues at an Ethernet switch, the setting device including a processor. The processor is configured to assign associations between an attribute associated with a transmission frame and a plurality of the queues having different priorities, set a parameter for a high priority queue having a priority equal to or higher than a threshold based on an adverse condition transmission schedule having transmission timings less desirable than those of a preset transmission schedule, and set a parameter for a low priority queue having a priority of less than the threshold using processing that is different from processing for setting the parameter for the high priority queue.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application is based on and claims priority under 35 USC 119 from Japanese Patent Application No. 2020-087510 filed on May 19, 2020, the disclosure of which is incorporated by reference herein.BACKGROUNDTechnical Field[0002]The present disclosure relates to a setting device, a parameter setting method, and a storage medium storing a program used to set parameters for transmission queues at an Ethernet switch.Related Art[0003]Japanese Patent Application Laid-Open (JP-A) No. 2017-108247 discloses a communication system used to transmit messages from an ECU to another ECU via an Ethernet switch.[0004]In Ethernet (registered trademark) communication, an Ethernet switch transmits messages in plural queues according to a prescribed scheduling method. For example, in the case of a weighted round robin (WRR) method, queues assigned a priority are weighted in order to extract and transmit several messages from each queue.[0005]However, if queu...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04L12/851H04L12/841H04L12/863H04L47/6275
CPCH04L47/2433H04L47/628H04L47/6295H04L47/283H04L49/351
Inventor YAMASAKI, YASUHIROTAKATA, DAISUKEKAWAHARA, KEIGO
Owner TOYOTA JIDOSHA KK
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